As we look ahead to 2025, the future of payments looks increasingly digital, flexible and driven by consumer choice. Contactless payments are giving consumers and merchants more ways to transact; ...
Different from regular MIMO, the XL-MIMO shifts part of the communication region from the far field to the near field, where the spherical-wave channel model cannot be accurately approximated by the ...
Abstract: In this letter, we propose a new conformal array architecture, called extremely large-scale uniform arc array (XL-UAA), to improve near-field communication performance. Specifically, under ...